Here’s a startling fact: America’s birth rates are plummeting, and the culprit isn’t just economic uncertainty or shifting cultural norms—it’s the skyrocketing cost of housing. But here’s where it gets controversial: new research suggests that if housing costs had remained stable since 1990, the U.S. could have seen 13 million more children born by 2020. Yes, you read that right. According to Benjamin K. Couillard, a doctoral candidate in economics at the University of Toronto, the connection between housing and fertility is far deeper than most realize. Couillard’s groundbreaking preprint research paper reveals that rising housing costs have led to an 11% drop in births nationwide since 1990, with housing alone accounting for a staggering 51% of the total fertility decline between the 2000s and 2010s. The U.S. fertility rate currently sits at 1.62 children per woman—well below the 2.1 replacement rate needed to sustain the population, as reported by the National Center for Health Statistics.
So, what’s the link? Couillard explains that families don’t just choose homes; they choose lifestyles. Larger families, or those planning to grow, often need bigger spaces, but soaring housing costs force many to delay or forgo having children altogether. And this is the part most people miss: it’s not just about affordability—it’s about long-term demographic sustainability. If housing were more accessible, fertility rates in the 2010s could have been 77% closer to the replacement level.
Couillard’s model, which blends urban economics and industrial organization, isolates the impact of housing costs from other factors like career choices or cultural shifts. He calls it a ‘living arrangement model,’ where decisions about starting a family are deeply intertwined with housing needs. For instance, young adults might delay marriage or children if they’re stuck in cramped apartments or living with parents due to high costs.
Here’s the kicker: current U.S. housing policies focus on building smaller units like studios and one-bedroom condos, which do little to address the needs of growing families. Professor Nathanial Baum-Snow, Couillard’s thesis supervisor, points out that subsidizing larger, family-sized homes would have a far greater demographic impact. In short, if families could afford spacious homes, they’d be more likely to have more children.
But here’s the controversial question: Are policymakers prioritizing short-term housing solutions over long-term demographic health? Couillard argues that a ‘maximalist’ housing policy—one that aggressively expands supply to keep costs down—could have solved much of the fertility crisis.
So, what do you think? Is housing the overlooked key to boosting birth rates, or are there other factors at play? Let’s debate this in the comments—because the future of America’s population may just depend on it.
